By "hanging doors", I'm assuming you mean closet doors. If so, the closet doors vary from tract to tract (and in some cases, owner to owner) in terms of size and materials. Some were metal frame with grasscloth insert, others wood frame with zolatone insert, etc.

I would be interested in knowing, first, if the doors have their original finish as far as you know. Past that, sizes would be useful.

I recently interviewed a vendor for the annual advertising directory, soon to be found in your mailbox, and they specialize in repairing all kinds of sliding glass doors, including replacing latches and handles. They are a farily new advertiser here, so you may not have heard about them. Anyway, it is one place to start...http://www.eichlernetwork.com/DoorRepair.html